Machine for forming pottery and glassware and finishing or turning the same



v 0. 0. THOMPSON. MAGHINEPOR FORMING POTTERY AND GLASS WARE AND FINISHING OE TURNING THE SAME.

Patented June 9; 1885.4

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ilnirn STATES oAsslus' o. THOMPSON, 01% EAST LIVERPOOL, orno:

MACHINE FOR FORMING POTTERY AND GLASSII/ARE AND FINISHING 0R TURNING THE SAME.

SPECIFICATION forming part of Letters Patent No. 319,760, dated -Iune 9, 1885.

Application filed April 16, 1885. (No model.)

To all whom it may concern:

Be it known that I, OASSIUS O. THOMPSON, of East Liverpool, in the county of Oolumbiana and State of Ohio, have invented certain new and useful Improvements in Machines for Forming Pottery and Glassware and Finish- ,ing or Turning the Same; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form My invention relates to an improvement in machines for making pottery, glassware, and

articles of all kinds from soft plastic materials which are capable of being molded; and it consists in, first, the combination of a drivingshaft with a suitable pulley or pulleys and an operating-wheel, which is providedwith a stud or projection, which'operates the slide to which the rod carrying the shaping-tools is connected second, the combination of a driving-shaft provided with a pulley or pulleys and an operating-wheel having a stud or projection upon one side and a cam upon the other, with a sliding spring-actuated frame,

which is provided with a projection or frictionwheel for the cam upon the operating-wheel to bear against, and to which the spring-actuated frame is connected, and the rod to which the shaping-tools are secured at its lower end;

third, the combination of thedriving-shaft provided with suitable pulley or pulleys and an operating-wheel provided with a studor projection upon one side for operating the slide, and with a cam upon the other side,

with a spring-actuated frame, which is provided with a projection or friction-wheel for the cam to strike against, and to which the.

rod carrying the shaping-tools is fastened, a

; guiding pin or stud which causes the rod carrying the tools to have a slightly ascending and descending lateral movement while in operation, all of which, will be more fully described hereinafter.

; The object of my invention is to provide a machine for forming articles having both' straight andbellied surfaces from clay, glass, paper-pulp, and all similar plastic materials which are capable-of being molded, and to .so construct the parts to which the shaping-tools I preventing the material which is being shaped from being injured at its bottom by the shaping-tools as they are drawn backward after having been moved laterally, for the purpose jof forming the-swell or concavo-convex in the farticle.

' Figure 1 is a side elevation of a machine embodying my invention. Fig. 2 is an edge iview of the same. Fig. 3 is an enlarged detail view.

A represents a suitable frame-work, of any desired shape or construction that may be pre iferred. Journaled in thisframe is a suitable {driving-shaft, upon which are formed the two pulleys B O, for the purpose of driving the ;machine at different rates "of speed. Upon the outer end of this driving-shaft is secured the operating-wheel D, which has a stud or projection, E, up0n its outer side, for the purpose of operating the slide F, which moves vertically upon the two guiding-rods G. These guiding-rods connect the two horizontal portions H of the frame-work A together, andserve simply to guide the slide vertically in as shown, so that the slide is not moved after it has reached its lowest point during a por-. tion of the revolution of the operating-wheel, as will be' more'fully described later on.

j -Upon the-inner side of the operating-wheel is formed a cam, I, which is not necessarily brought into play while straight goods are bein g made, but which is used in making bellied goods. When straight goods are being made,

and by which is meant goods having'straight inner surfaces, in contradistinction to those having curved surfaces, onlya reciprocating movement is necessary in forming the goods; but where goods are being made having curved surfaces of any kind the forming-tools must be given a compound movement. pose the rod 1, which has the tool-holder se- For this purcured .to its lower end, is loosely connected at its upper end to the lower edge of the slide by means of an inclined pin or stud,-L, so that the tool-holder can be given both a vertical and a lateral movement at the same time. This rod 1 is made to pass through the guide N, which is formed upon the end of the sliding spring-actuated frame 0, upon the top of which is formed the stud or frictional wheel P, for the cam upon the operating-wheel to strike against. This sliding spring-actuated frame is .plaeed upon suitable horizontal guides, and remains stationary, except when the cam upon the operating-wheel strikes against the stud or projection formed upon its top, for the purpose of pushing it sidewise the width of the cam. When this frame is pushed sidewise by the cam on the operating-wheel, the guide N upon its end is moved laterally with the frame for the purposeof forcing the upper end of the rod I downward upon the inclined pin or stud which passes through its upper end.

The tool-holder is made to constantly reciprocate while the operating-wheel isin motion, for the purpose of causing the formingtools to enter the moldand force back the ma- :machine as above described it is removed, partially dried, and then brought back, either terial out of which the article is to be formed, and when the sliding frame is moved inwardly by the cam upon the operating-wheel the tools are given both a vertical and a lateral movement at the same time.

For the purpose of allowing the sliding frame to be moved or not, according to the kind of goods being made, the frictional wheel, against which the cam on the operating-wheel is made to strike, is made removable from the sliding frame, so that the'cam will not move the sliding frame except when the friction-wheel is in position. moved by the cam on the operating-wheel, the

- shaping-tools have no other than simply avertical movement. Where only straight goods are being formed, a compound movement is not desired, and hence the sliding frame is not necessary to be used; but it can be brought into play, if so desired.

When the sliding frame is brought into use, just as the shaping-tools have nearly reached the length of their stroke toward the bottom of the implement being formed the cam upon the operating-wheel begins to move the sliding frame, and then the shaping-tools begin to move laterally at the same time that they are moved vertically. While thus moving both vertically and laterally the bottom of the implementis being formed, and after having been formed the tool begins to rise upward and backward at the same time, so as to prevent the tools from tearing the surface of the plastic material which is being worked. This compound movement enables the curved surface of the implement to be formed at the same time. When the shaping-tool first descends upon the material which is being worked, it forces the-materialback against the sides of the mold. at the bottom, and then the tool,

begins to move laterally for the purpose of forming the curved surface, and then,.after having formed this curved surface, the tool returns to its vertical position, so that it can When the sliding frame is not be drawn upward and out of the mouth. The pin or stud which passes through the head of the rod 1', being placed at an inclination, as above stated, causes the shaping-tool to first sink downward as the sliding frame is moved laterally by the cam upon the operating-wheel, and then as. the sliding frame returns to position it forces the rod outward and upward at the same time. If the shapingtool had simply a sidewise movement in connection'with itsver'tical play, it would tear the material in the bottom of the vessel which is being formed, whereas, by giving, the tool both a vertical and a downwardly and upwardly lateral movement the bottom is formed as smoothly and evenly as any other part.

The tool-holder a upon the bottom of the i rod I may consist simply of a flat plate, which is held in position by means of set-screws or any other similar devices, and to which plate j-the forming or shaping tools are secured in ,any suitable manner.

After the article has been formed by the to the same or another machine of the same construction, to be finished. The article is placed upon the revolving head or disk,

which is generally used, in an inverted position, and then shaping-tools are attached to ithe tool-holder, of such a shape that they will 'go over the outer surface of the article and give it a suitable finish. Thus it will be seen that the. same machine is made to both form jthe article and then finish it afterward.

Having thus described my invention, I claim '1. The combination of the frame, the driving-shaft provided with pulleys, the operating-wheel provided with a stud or projection, a grooved slide, and the rod carrying the shaping-tools, substantially as shown.

1 2. The combination of the frame, the driving-shait provided with suitable pulleys, the operating-Wheel provided with a stud or projection for moving the slide vertically, and a cam with a sliding spring-actuated frame, to which the outer end of the rod 1, carryin the shaping=tools, is secured, substantially as described.

3. The combination of the driving-shaft provided with suitable pulleys, the operatingwheel provided with a stud or projection for moving the slide, and an inclined pin or projection which passes through the upper end of the rod 1, carrying the shaping-tools, with a.

spring-actuated frame having a guide upon the end through which the rod 1 passes, and

provided with a stud or friction-wheel against which the cam on the driving-wheel bears for the purpose of moving. the frame, substantially as set forth.

4. In a machine for forming articles from plastic material, the combination of a revolvcarries the shaping-tools a vertical movement .ing operating-wheel for giving the rod which i with a sidewise-sliding frame which causes the rod I to move laterally at the same time the rod downwardly and upwardly at the that it is moving both upward and downward same time that it is moving laterally, substanat the lower end of its stroke, substantially tially as described.

as specified. In testimony whereof I affix my signature in 5 5. In a machine for forming vessels from presence of two witnesses.

plastic material the combination of an operating-wheel for moving the rod which carries OASSIUS THOMPSON the sh aping-tools vertica11y,a sliding endwise- Witnesses:

moving frame for moving the rod laterally, F. A. LEHMANN,

10 and an inclined stud or projection for-moving L. F. GARDNER. 

